I'd be more worried about battery life.
The reason Nintendo owns portable gaming is that their console is the only one lasting 6h+ while gaming fully.
Sony and Sega in its time did the same mistake: higher perfs, prettier graphics, but shorter battery life. What is the point of a portable if you need to be hooked to a power plug?

Haha yea my game gear used to eat AA batteries. It took six of them and they only lasted about 3-4 hours. The rechargeable battery pack allowed you to play an hour or two more but it was a clunky thing.